Question

find the value of x if 2x+25​

Answer 1

Answer:

Taking log on base 2 on both side

xlog2 (2)=log2 (25)

x×1=log2(5^2)

=2log2(5)

=2log2(10/2). ………….(logx(m/n)=logx(m)-logx(n))

=2(log2(10) - log2(2)) ………..(logy(y)=1)

=2(1/log10(2) - 1) ………(log(a)=1/loga(x))

=2(1/0.3010 - 1) ……….(log10(2)=0.3010)

=2(3.322 - 1)

=2(2.322)

=4.644

Hope this will help you.